The company is engaged in the business of transmission and distribution of natural gas in southern part of Pakistan- mainly in Sindh and Baluchistan.

[3] The funding for SGTC came from multiple sources including Pakistan Industrial Development Corporation (PIDC), Commonwealth Development Finance, Burmah Oil, and general public, with each entity investing approximately PKR 10 million.

[3] The construction of the 347-mile pipeline with a 16-inch diameter and a capacity of 110 million cubic feet of gas per day was carried out by Pakistan Constructors, a joint venture between Morrison–Knudsen and William Press Ltd.[3] The project commenced in July 1954 and was completed by April 1955.

[3] Additionally, Indus Gas Company was established under the supervision of PIDC to distribute gas to regions outside the Federal Capital area, with managerial and technical support from Italian firm, Societe Nazionale Metanodotti (SNAM).

[2][5] SSGC owns and operates the only gas meter manufacturing plant in the country, under an agreement with Schlumberger Industries, France.